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Natural rubber latex-clay nanocomposite: Use of montmorillonite clay as an alternative for conventional CaCo3

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dc.contributor.author Amarasiri, A
dc.contributor.author Ratnayake, UN
dc.contributor.author De Silva, UK
dc.contributor.author Walpalage, S
dc.contributor.author Siriwardene, S
dc.date.accessioned 2014-06-26T15:09:52Z
dc.date.available 2014-06-26T15:09:52Z
dc.date.issued 2014-06-26
dc.identifier.uri http://dl.lib.mrt.ac.lk/handle/123/10111
dc.description.abstract Natural rubber (NR) latex-clay nanocomposite (NRLCN) synthesized with montmorillonite (MMT) clay aqueous dispersion was evaluated for reinforcement and barrier properties. The physio-mechanical properties of the NRLCN were compared with the conventional NR latex composites containing CaCO3. The NRLCN structure was characterized with X-ray diffraction and scanning electron microscope techniques. The X-ray diffraction data showed that, with a lower concentration of clay, a highly exfoliated clay structure was achieved whilst the clay aggregation gradually resulted in a higher concentration of clay. The crosslink density as computed based on the solvent absorption data of the latex nanocomposite films was increased with the increase of clay concentration. As a result of nanoscale dispersion of the montmorillonite clay and higher crosslink density of the latex nanocomposite films, the resistance to permeation of small molecules through the NRLCN was significantly enhanced in comparison to conventional NR latex-CaCO3 composites. Solid state mechanical properties of NRLCNs showed a significant reinforcement effect of dispersed clay platelets but without significantly reducing the elastic properties. The higher mechanical properties and improved barrier resistance indicated that NR latex nanocomposites containing montmorillonite clay is a potential replacement for conventional NR latex composites containing CaCO3. en_US
dc.language.iso en en_US
dc.source.uri http://www.sljol.info/index.php/JNSFSL/article/viewFile/6258/4868 en_US
dc.title Natural rubber latex-clay nanocomposite: Use of montmorillonite clay as an alternative for conventional CaCo3 en_US
dc.type Article-Full-text en_US
dc.identifier.year 2013 en_US
dc.identifier.journal Journal of the National Science Foundation of Sri Lanka en_US
dc.identifier.issue 4 en_US
dc.identifier.volume 41 en_US
dc.identifier.pgnos pp 293-302 en_US
dc.identifier.email shanthawcheng.mrt.ac.lk en_US


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